This patch adds the changes to Proc start and
Proc stop based on the validation on Zebu.
Proc start function is extended to enable M3
clock and program Ducati MMU. Proc Stop is extended
to put Cores in reset and disable M3 clock, and the
option to disable individual Core and MMU.
Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>